PR8111、PR8112_user_manual_eng_20191015H.pdf - 第12页

1.1 Product Overview and Features 9 1 The PR81 1 1 and PR81 12 are compact, li ghtweight, highl y portabl e pen recorders. Y ou can select from two power sources (AC adapt er or dry-cell batter ies) according to wher e t…

Operating Precautions

Connecting Cables

• The maximum input voltage is 250 VDC. Attempting to measure voltage in excess

of the maximum input could destroy the instrument and result in personal injury or

death.

• The maximum rated voltage between input terminals and ground is 300 VAC, DC.

Attempting to measure voltages exceeding 300 V with respect to ground could

damage the instrument and result in personal injury.

• To avoid electrical accidents, confirm that all connections are secure. The

increased resistance of loose connections can lead to overheating and fire.

• To avoid experiencing an electric shock or causing a short-circuit at the input ter-

minals, only insulated crimp contacts should be used on wires being connected to

input pins. (The input terminal pin diameter is M6.)

1.1 Product Overview and Features

The PR8111 and PR8112 are compact, lightweight, highly portable pen recorders. You can select

from two power sources (AC adapter or dry-cell batteries) according to where the instrument is

being used, assuring your ability to record data immediately and easily with unparalleled reliability,

wherever you are.

Overview Chapter 1

1.1 Product Overview and Features

Record, verify, and notate

measurement results in the field

Measurement results are recorded on paper, allowing

them to be easily verified. You can also make notes on the

paper in the field. Additionally, the instrument can measure

voltage output from other equipment, allowing it to be used

in maintenance applications such as corrosion prevention

systems. It can also record analog output, for example

from sensors and physics or chemistry instruments.

Assess changes in easy-to-see

color waveforms by watching

pen movements

The instrument can use red, green, and blue

pens (option). Waveforms are easy to see, even

outdoors, and can be stored for extended periods

of time. Additionally, you can assess waveform

changes in real time simply by watching the in-

strument’s pens as they move.

Preserve important recordings

Record with the front cover open to protect

recording paper from dirt on the ground.

Record with the front cover closed to keep out

dust and wind.

You can also use the included drip-proof vinyl

cover to protect the instrument from water

droplets and dust.

Select the power source

according

to your location

The instrument can be operated us-

ing either the AC adapter or dry-cell

batteries.

Easily compare and

verify results on paper

You can easily discover changes

and abnormalities by comparing

recordings with previously record-

ed waveforms.

1.2 Names and Functions of Parts

Front Panel

Handle

POWER switch (p. 19)

Turns the power on and off.

:Power OFF

:Power ON

Power LED

Lights up when the instrument is being supplied with power.

Green Lights up when power is being supplied by the

AC adapter. When using batteries, indicates

ample remaining battery life.

Orange Indicates limited remaining battery life. It is rec-

ommend to have new batteries ready to use.

Red Indicates low remaining battery life. It is recom-

mended to replace the batteries in the instru-

ment with new batteries.

Operating panel (p. 11)

Front cover (p. 21)

Keeps wind and dust out of the instrument.

The cover can be removed. It opens from above.

Note: When using roll paper, either remove the

front cover or use the instrument with the cover

open. Recording data with the front cover closed

may cause paper to jam in the chart tray.

(Example: PR8112)

Chart cover (p. 12)

Holds down the recording paper.

Chart holder

(Located underneath the platen)

Stores new recording paper. (p. 14)

Chart tray

Stores paper after waveforms have been

recorded. Fanfold paper will be folded here.

Pen holders (p. 16)

(Located toward the rear of the instrument)

Holds the pens. For more information about

compatible pens, see "Options" (p. 2).

Pen lever

• CHART SET (top)

Use when changing recording paper. The pens

will move up (away from the recording paper) and

to the right.

• UP (middle)

Use when changing pens or to disable recording.

The pens will move up (away from the recording

paper). Cap pens when not recording.

• DOWN (bottom)

Use when recording. The pens will be in contact

with the recording paper, allowing them to record

data.

Pen cap storage pins (p. 16)

Store caps on these pins while the pens are being

used so they don’t get lost.

Platen

Holds down the recording paper.

Sprockets

Feed the recording paper using a series

of holes along its edges.

When the chart

cover is open